How to Check for DTCs with the HDS

NOTE:  Check the vehicle 12 volt battery condition first:

Go to:

12 Volt Battery Test (Without Auto Idle Stop System) or

12 Volt Battery Test (With Auto Idle Stop System) .

1. Make sure the vehicle is in the OFF (LOCK) mode.

2. Connect the HDS to the data link connector (DLC)

3. Turn the vehicle to the ON mode.

4. Make sure the HDS communicates with the vehicle and the telematics control unit. If it does not, troubleshoot the DLC circuit - Go to:

DLC Circuit Troubleshooting (Without CAN Gateway) (2019 2020 2021)

DLC Circuit Troubleshooting (With CAN Gateway) (2019 2020 2021)

5. Select Telematics in the BODY ELECTRICAL menu.

6. Select DTCs in the Telematics menu.

7. Check for DTCs. If any DTCs are indicated, write down the DTCs, then go to the indicated DTC troubleshooting. If no DTCs are indicated, refer to symptom troubleshooting.

• After troubleshooting, clear the DTCs with the HDS.
• For specific operations, refer to the user's manual that came with the HDS.